Results: the best imagine edge effect and visual sense definition for red free light picture contrast is 0.87. Grey brume is the second important parameter.

结果：无赤光像反差为0.87时影像边缘效应、视觉清晰度最佳，灰雾为第二位。

youdao

Once integrated, flexible LED modules smoothly follow the shape of a handrail, creating homogeneous bands of shadow free light that add a sophisticated look to any stairway.

当设计好扶手外形之后，将灵活的LED模组安装在其中，这样模组就可以平滑地沿着扶手外形展现出均匀光带，使得楼梯变得与众不同。

youdao

There's a sensation to barefoot walking that is light, free, simple, joyful.

我感到赤脚步行是一种轻松、自由、简单和愉快的体验。

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I was born on the plains where the wind blows free, and there is nothing to break the light of the sun.

VOA: special.2010.04.01

He did it to bring more light, he did it to bring more air, he did it to free the flow for capital, money; that's why the department stores are on the boulevards.

他这么做是为了多点光,多点新鲜空气,他为了使资产的流动更为自由,这就是为什么百货商店都建在大道旁边

耶鲁公开课 - 1871年后的法国课程节选

After the initial small investment, the owner has clean, green, continuous, and free light.

FORBES: A $5 Lamp Can Change The World - GravityLight

In other green tech and design news, Hitachi unveiled an impressive new wireless controlled robot to help with the Fukushima Daiichi cleanup and London-based designers Martin Riddiford and Jim Reeves developed the GravityLight, an amazing low-energy, battery-free light that works by harnessing the power of weight and gravity.

ENGADGET: Inhabitat's Week in Green: madder root batteries, sun-powered plane and the world's first fiber-optic solar cell

Likewise, I harbor no illusions that Barack Obama is going to suddenly see the pro-growth, free market light and introduce policies that will unleash the entrepreneurial spirit vital to U.S. growth.

FORBES: President Obama's Economy Continues To Fizzle